From: "Ramesh Sudini" <rameshred@hotmail.com>
To: linux-kernel@vger.kernel.org, rameshred@hotmail.com
Subject: Copy_to_user and copy_from_user
Date: Tue, 03 Aug 2004 20:45:51 +0000 [thread overview]
Message-ID: <BAY12-F12PkQTGpaoG100000364@hotmail.com> (raw)
Hi,
If copy_from_user returns non zero value, then I do not see any driver(for
example PPP) try to copy the remaining data. It treats it as an error
scenario.
Why is this? Shouldnt it have a while loop and attempt to copy_from_user
till all the data is copied??
I am writing a driver and trying to understand what needs to be done in case
it returns a non-zero value? I have huge amount of data to be copied from
user space Ex: 3000byte messages.
Can somebody suggest me what is the best I could do...(Please cc me
personally with your response)
Thanks
Ramesh
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next reply other threads:[~2004-08-03 20:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-03 20:45 Ramesh Sudini [this message]
2004-08-03 18:07 ` Kernoulas
2004-08-09 13:26 Ramesh Sudini
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